Air Purifier Buying Guide India 2024

Air Purifier Buying Guide India

Looking for guidance on selecting the right Air Purifier ?

Well you are in the right place. 

We bet you this is the one and only guide you need for choosing the right Air Purifier for your requirement.

So, read this article carefully.

When selecting a Air Purifier for your home you will need to pay attention to several factors.

Let us discuss those factors:

How Does an Air Purifier Function?

Air purifiers can be used in any room of your home, from the bedroom to the living. Air purifiers use different filtration methods such as mechanical, ionic or electrostatic systems with hybrid ones for a complete clean air flow indoors that’s free from dust and other allergens. This purifies the room air keeping you and your family healthy.

Some Factors to Keep in Mind Before Buying an Air Purifier:

• Asthmatic patients should opt for air purifiers having TRUE HEPA filters and should avoid Ozone based purifiers.

• People who have lower immunity levels and those on dialysis should install air purifiers of top quality with True HEPA filter, Pre-filter etc.

• Only True HEPA Filter technology ensures 100% elimination of allergens.

• People living in construction areas must ensure to have a purifier having a strong pre-filter. The pre-filters should be replaced frequently.

• People living in industrial areas should own a purifier with Activated Carbon filters to remove the odour in the air.

• People who keep pets at home should also opt for air purifiers with strong pre-filter to avoid breathing in pet hair.

Things to Know Before Purchasing an Air Purifier

Levels and Types of Filters


Pre-filters like foam and non-woven polyester, eliminate large particles like pet hair before the next stage of filtration.

True HEPA (High Efficiency Particulate Air) Filters 

These clean allergens such as pollen, animal skin and dander, mold spores, and dust. HEPA filters can remove 99.9% of all the particles which can be as small as 0.3 microns.

HEPA air purifier filters have to be changed from time to time.

The larger the HEPA filter, the more particles it will be able to remove.The size, material, and construction of the filter highly determines air purifier’s performance.

Activated Carbon Filters

These filters are used in combination with other filters. Activated carbon/charcoal filters help in absorbing odors and gases thereby neutralizing smoke, chemicals, food smell and fumes.

Carbon Filters also need to be replaced after use over time.

Antibacterial and Germicidal Filters 

These filters help in eradicating harmful bacteria and germs.

UV filters 

UV filters along with HEPA filters ensure the air you breathe is sterile.

This filter is generally used in hospitals, kitchens, labs and daycare schools to minimize the risk of airborne infections.

Charged Media Filters

These types of filters combine a particle filtration along with an electrostatic charge filter to filter particles as small as 0.1 microns. This filter needs to be replaced as well to work efficiently.

Photocatalytic Oxidation (PCO) Filter 

These uses of a titanium dioxide coated metal plate along with UV light to oxidize and physically break down chemicals during the filtration process.

Air Change Rate of an Air Purifier

The ACH (or the air change per hour rate) of an air purifier shows exactly how many times the purifier filters the entire room’s air in an hour.

CADR Ratings

This rating is the measure of delivery of purified air by an air purifier at its maximum speed setting. It is for both the amount of airflow and particle removal efficiency. Before making a purchase, look for the CADR as higher the CADR,higher will be the efficiency of the air purifier for a given room size.

Air Purifier based on Area/ Size of Room

You should also check the size of your room before choosing a suitable Air purifier according to the room size. Bigger spaces will need larger air purifiers so make sure you buy an air purifier that can operate in a space that is 20-40% larger than a general sized room for the best performance.

The choice of the air purifier also depends on the type of room.While buying for a bedroom, choose an air purifier that makes less noise so that you can sleep peacefully. For a living room,a purifier can have variable settings which you can change or decrease when no one is in the room.


We hope that by reading this guide, you have got the right idea which will help you in buying an Air Purifier according to your needs.

If you have got useful information from this Guide, then please share this article with your friends so that they can buy the best, durable, budget friendly and smart Air Purifier too!

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